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Texas Instruments TPS622313DRYT
- Part No.:
- TPS622313DRYT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS622313DRYT.pdf
- Description:
- IC REG BUCK 1.3V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:505
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Product details
Overview
TPS622313DRYT from Texas Instruments is a 3-MHz synchronous step-down DC-DC converter in a 1 mm × 1.5 mm USON-6 package, delivering up to 500 mA output current with fixed 1.3 V output voltage, 2.05–6 V input range, and 22 μA quiescent current in power-save mode. It serves as an ultra-compact, high-efficiency replacement for LDOs in space-constrained portable power rails.
For engineers reviewing the TPS622313DRYT datasheet, TPS622313DRYT pinout, TPS622313DRYT application, or TPS622313DRYT equivalent, key selection criteria include its 1.3 V fixed output, 3 MHz switching frequency, 6-pin USON thermal performance (RθJA = 294.5°C/W), forced-PWM capability via MODE pin, and suitability for low-noise audio/RF supply domains requiring <12 mm² solution size.
Technical Context
The TPS622313DRYT implements a hysteretic PWM controller topology enabling 3 MHz operation with excellent AC load regulation and sub-100 μs startup time. Its internal 0.7 V reference feeds a precision feedback loop tied to the FB pin, supporting ±2.5% output accuracy across –40°C to 125°C junction temperature.
It integrates complementary PMOS/NMOS power switches with typical RDS(ON) of 600 mΩ (high-side) and 350 mΩ (low-side), and features programmable functional modes: automatic PFM/PWM transition (MODE = GND) or forced PWM (MODE = VIN), plus shutdown control via EN pin with <1 μA quiescent draw.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.3 V - eliminates external resistor divider; ensures stable core supply for low-voltage DSPs or microcontrollers. |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-ion (2.7–4.2 V), Li-primary, or dual-alkaline batteries without dropout issues. |
| Switching Frequency | 3 MHz - enables use of tiny 2.2 μH inductors and 4.7 μF ceramic capacitors, minimizing PCB area to <12 mm². |
| Max Output Current | 500 mA - sufficient for powering low-power wireless SoCs, camera ISPs, or audio codecs with margin. |
| Quiescent Current | 22 μA in PFM mode - extends battery life in standby/sleep states of portable media devices. |
| Efficiency | Up to 94% - reduces thermal load in sealed enclosures and improves energy conversion vs. linear regulators. |
| Thermal Shutdown | 150°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
TPS622313DRYT uses a 6-pin USON (DRY) package measuring 1.0 mm × 1.5 mm × 0.6 mm, optimized for minimal footprint and height (≤0.6 mm). The exposed pad is not electrically connected and must be soldered to PCB for thermal conduction only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Primary DC input (2.05–6 V); requires local 2.2 μF ceramic decoupling close to pin. |
| GND | Power Ground | System ground return path; connects directly to thermal pad and input/output capacitor grounds. |
| EN | Digital Enable | Active-high enable; must be pulled high (≥0.8 V) to operate; floating not allowed (no internal pull-up). |
| MODE | Operating Mode Select | Low = auto PFM/PWM transition; High = forced PWM; no internal pull-down (unlike TPS622319). |
| SW | Switch Node | Connection point for external 2.2 μH inductor; carries high-frequency switching current and requires tight layout. |
| FB | Feedback Input | Direct connection to output capacitor; senses regulated 1.3 V via internal 0.7 V reference and fixed divider. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | 12 mm² total PCB area - achieved with 1×1.5 mm IC, 2.2 μH inductor, and 4.7 μF output cap; ideal for wearables. |
| High PSRR (up to 90 dB) | Maintains clean 1.3 V rail under noisy input conditions (e.g., shared battery with RF transceivers or motors). |
| 100% duty cycle capability | Enables lowest possible dropout - critical when VIN drops near 1.3 V (e.g., end-of-life alkaline cells). |
| Optimized PFM ripple suppression | Minimizes output voltage ripple at light loads without external compensation - simplifies design for audio DAC supplies. |
| Soft-start (100 μs) | Controls inrush current during power-up; prevents input voltage sag on weak sources like coin-cell batteries. |
Applications
| Portable Audio Power | Low-Power Wireless MCU |
|---|---|
|
Use Scenario: Powering stereo audio codecs or Class-D amplifiers in Bluetooth earbuds with Li-ion battery input. IC Role / Device Role / Timing Role: Primary 1.3 V core supply regulator delivering clean, low-ripple voltage to analog audio circuitry. Use Value: 90 dB PSRR and PFM-optimized ripple ensure no switching noise couples into audio band (<20 kHz), eliminating audible artifacts. |
Use Scenario: Supplying 1.3 V core voltage to BLE SoCs (e.g., CC2640R2F) operating in deep-sleep and active transmit modes. IC Role / Device Role / Timing Role: Efficient buck converter enabling >10-year battery life via 22 μA quiescent current and fast 100 μs wake-up response. Use Value: 3 MHz switching allows full regulation during short active bursts while maintaining >90% efficiency at 1–10 mA loads. |
| Digital Camera ISP Core | LDO Replacement in Space-Constrained Designs |
|
Use Scenario: Providing stable 1.3 V to image signal processors in compact action cameras powered by single-cell Li-ion. IC Role / Device Role / Timing Role: High-transient-response DC-DC regulator handling rapid current steps during image capture and sensor readout. Use Value: Hysteretic PWM architecture delivers <10 μs transient recovery and supports 500 mA peak loads without brownout. |
Use Scenario: Replacing inefficient 1.3 V LDOs in medical sensors or IoT nodes where thermal and battery life are critical. IC Role / Device Role / Timing Role: Drop-in efficiency upgrade with identical fixed output and compatible 6-pin USON footprint. Use Value: 94% efficiency at 100 mA reduces power dissipation by >75% vs. typical LDOs, eliminating need for derating or heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYT | Fixed 1.8 V output; otherwise identical pinout, package, and electrical specs. | Not suitable where 1.3 V rail is required (e.g., specific DSP cores); requires redesign of output filtering if used as substitute. | Select only if system voltage architecture permits 1.8 V instead of 1.3 V; verify compatibility with downstream logic thresholds. |
| TPS622312DRYT | Fixed 2.0 V output; same 3 MHz frequency, USON-6 package, and 500 mA rating. | Higher output voltage limits use in ultra-low-voltage domains; may require level-shifting for 1.3 V–1.5 V logic interfaces. | Prefer for systems needing higher core voltage margin; avoid where strict 1.3 V compliance is mandated by IC datasheet. |
Compared with TPS622313DRYT, TPS62231DRYT and TPS622312DRYT share identical thermal, layout, and control characteristics but differ solely in fixed output voltage - making them functionally interchangeable only when the target rail voltage matches their respective 1.8 V or 2.0 V outputs.
Availability
TPS622313DRYT is available at Aetrix Electronics and suitable for portable audio, low-power wireless, and digital camera applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS622313DRYT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies with over 50 years of innovation in high-reliability, high-efficiency power conversion solutions.
The TPS6223x product line was designed specifically for ultra-compact, battery-powered portable electronics demanding minimal PCB area, low quiescent current, and robust performance across wide input voltage and temperature ranges.
FAQ
What is the fixed output voltage of the TPS622313DRYT?
The TPS622313DRYT provides a factory-trimmed fixed output voltage of 1.3 V. This value is set internally and does not require external resistors - ensuring consistent regulation accuracy of ±2.5% over –40°C to 125°C junction temperature and eliminating BOM cost and layout complexity associated with feedback dividers.
Does the TPS622313DRYT support forced PWM mode?
Yes, the TPS622313DRYT supports forced PWM mode via the MODE pin: pulling MODE high (≥0.8 V) disables automatic PFM/PWM transition and locks the device into continuous PWM operation across all load conditions. This reduces output voltage ripple and simplifies EMI filtering for noise-sensitive applications like RF front-ends or high-fidelity audio.
What is the minimum input voltage required for the TPS622313DRYT to start up?
The TPS622313DRYT requires a minimum input voltage of 2.05 V to initiate startup. Below this threshold, the undervoltage lockout (UVLO) circuit holds the device in shutdown. Once VIN rises above the rising UVLO threshold (~1.9–2.05 V), the device powers up with internal soft-start and begins regulating the 1.3 V output within 100 μs.
Can the TPS622313DRYT operate with a pre-biased output capacitor?
Yes, the TPS622313DRYT supports start-up into a pre-biased output capacitor. When enabled, it detects the existing output voltage and ramps monotonically to 1.3 V without forcing reverse current into the load - a critical feature for hot-swap or multi-rail sequencing systems where output caps may retain residual charge from other supplies.
What package type and dimensions does the TPS622313DRYT use?
The TPS622313DRYT is housed in a 6-pin USON (DRY) package measuring 1.0 mm × 1.5 mm × 0.6 mm nominal body size. It features a wettable flank design for automated optical inspection and requires soldering of the exposed thermal pad to PCB copper for optimal thermal performance (RθJA = 294.5°C/W).
TPS622313DRYT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-UFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.05V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SON (1.45x1)
TPS622313DRYT FAQ
1.How can I place an order for TPS622313DRYT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS622313DRYT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS622313DRYT reliable?
The price and inventory of TPS622313DRYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS622313DRYT is usually 5 days.
3.What payment methods are accepted for TPS622313DRYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS622313DRYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS622313DRYT?
TPS622313DRYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS622313DRYT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS622313DRYT?
For technical support, including TPS622313DRYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS622313DRYT requirements.
6.How does Aetrix verify that TPS622313DRYT is sourced from the original manufacturer or authorized distributors?
All TPS622313DRYT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS622313DRYT meets industry standards.
7.What is the process for return or replacement of TPS622313DRYT?
All TPS622313DRYT units undergo pre-shipment inspection (PSI). If there is an issue with TPS622313DRYT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS622313DRYT part is unused and in its original packaging.
Return procedure for TPS622313DRYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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